16进制MAC地址转化为字符串

MAC地址本来的形式是这样的：0x00 0x07 0xA8 0x10 0xc0 0x 11 0x00 0x00 0x00 0x00,它存于一个char* mac中，
我现在想将其转化为0007A810C011形式的字符串，应该怎么写？

#include

int main()
{
unsigned char mac[6] = {0x00,0x07,0xA8,0x10,0xC0,0x11};
char buf[13];
int i;

for (i = 0; i < 6; i++) {
sprintf(buf+2*i, "%02X", mac[i]);
}
buf[12] = '\0';

printf ("%s\n", buf);

return 0;
}

#include int main (void) { char *mac = "\x0\x7\xa8\x10\xc0\x11"; int i; for(i = 0; i < 6; i++) printf("0x%02X ", (unsigned char)mac[i]); return 0; }